原生JavaScript实现随机点名表
编程学习 2021-07-04 14:07www.dzhlxh.cn编程入门
这篇文章主要为大家详细介绍了原生JavaScript实现随机点名表,文中示例代码介绍的非常详细,具有一定的参考价值,感兴趣的小伙伴们可以参考一下
本文实例为大家分享了JavaScript随机点名表的具体代码,供大家参考,具体内容如下
效果:
代码:
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title></title> <style> .box{ width:300px; height:200px; border:1px solid #ccc; /*position: absolute; left:0; right:0; top:0; bottom:0; margin: auto;*/ margin: 100px auto; text-align: center; } h1{ width:150px; height:60px; line-height: 60px; text-align: center; font-size: 30px; background-color: red; margin: 10px auto; } button{ width:100px; height:40px; background-color: dodgerblue; border:0; font-size: 24px; color:#fff; } </style> </head> <body> <div class="box"> <h1></h1> <button>开始</button> <button>停止</button> </div> <script> var h1=document.getElementsByTagName('h1')[0]; var btn=document.getElementsByTagName("button"); var arr=["苏晨旭","张志阳","狼蚁网络推广","社会坤哥","药","敬珍","锦涛","网管","社会辰哥","渣男","雪","宝贝曼","大个","睡神","龙爷","英儿","东北娃","珂珂","黄花大闺女","狗蛋","狗子","天娇","志强","晋玮","海涛","迈姐","新凤","环姐","二狗"]; var ind=ranFun(0,arr.length-1) h1.innerHTML=arr[ind]; var timer; btn[0].onclick=function(){ clearInterval(timer) timer=setInterval(function(){ h1.innerHTML=arr[ranFun(0,arr.length-1)] },100) } btn[1].onclick=function(){ clearInterval(timer) } function ranFun(a,b){ return Math.floor(Math.random()*(b-a+1)+a) } </script> </body> </html>
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持狼蚁SEO。